PHITS Benchmarking for HPGe Detector Efficiency

Efficiency determination of HPGe detector by simulation and experimental methods for solid volume source

Analyzes of environmental samples regarding their radioactivity is of important concern for health purposes. We need standard sources to determine radioactive components and their activities. These sources are usually produced regarding type of the sample. One of the fundamental and precise tools to recognize radioactive materials and their activities is HPGe detector. To reach this goal, the d...

Full Energy Peak Efficiency Calibration of HPGe detector by MCNP

Monte Carlo Determination of Full Energy Peak Efficiency for HPGe Detector and Self-Absorption Correction of Environmental Samples

The Monte Carlo method was used to determine full energy efficiency of a high-purity germanium (HPGe) coaxial detector within an energy range of 53.2-2614 keV. Also, measurement was carried out for a standard Marinelli beaker of 600cm3, which was placed into the reference material of mixed gamma. The plot of the experimentally derived effic...

Gamma-ray imaging with coaxial HPGe detector

We report on the first experimental demonstration of Compton imaging of gamma rays with a single coaxial high-purity germanium (HPGe) detector. This imaging capability is realized by two-dimensional segmentation of the outside contact in combination with digital pulse-shape analysis, which enables to image gamma rays in 4p without employing a collimator. We are able to demonstrate the ability t...

Derivation of an efficiency-calibration simulation for a well-type HPGe detector using the Monte Carlo approach and analytical techniques

Simulation is a simple method that allows for facile estimation of a detector response function when the specifications of the investigated sample and the sample-detector geometry are known. In this study, the dependence of the full-energy peak efficiency on the sample and detector specifications was studied via analytical techniques and the Monte Carlo approach in the energy range of 150e2000 ...